City vs city
Lewisville vs San Antonio, TX
Lewisville currently scores 3 points higher overall than San Antonio, with the largest gap in flood.
Use this comparison for relocation decisions, insurance shopping, and hazard-prioritized mitigation planning.
Hazard breakdown
Scores describe each city’s reference grid tile, not every property. A missing model is unavailable, not zero risk. Air quality is a current EPA AirNow signal; other factors describe baseline exposure. The overall score blends different hazards and is not a probability of damage. Read the scoring methodology and sources.
Overall
Lewisville: 51/100 · San Antonio: 48/100
Lewisville is 3 points higher.
Flood
Lewisville: 55/100 · San Antonio: 33/100
Lewisville is 22 points higher.
Lewisville: FEMA NFHL flood zones: 18 features intersect this tile.
San Antonio: FEMA NFHL flood zones: 13 features intersect this tile.
Wind
Lewisville: 14/100 · San Antonio: 17/100
San Antonio is 3 points higher.
Lewisville: Wind exposure derived from ingested design wind / climatology tiles.
San Antonio: Wind exposure derived from ingested design wind / climatology tiles.
Lightning
Lewisville: 59/100 · San Antonio: 38/100
Lewisville is 21 points higher.
Lewisville: Lightning exposure derived from ingested climatology tiles.
San Antonio: Lightning exposure derived from ingested climatology tiles.
Tornado
Lewisville: 54/100 · San Antonio: 62/100
San Antonio is 8 points higher.
Lewisville: Tornado risk derived from NOAA SPC historical reports.
San Antonio: Tornado risk derived from NOAA SPC historical reports.
Hail
Lewisville: 100/100 · San Antonio: 100/100
No gap.
Lewisville: Hail risk derived from NOAA SPC historical reports.
San Antonio: Hail risk derived from NOAA SPC historical reports.
Storm surge
Lewisville: Unavailable · San Antonio: Unavailable
A score difference cannot be calculated without both sources.
Lewisville: Storm surge model is not available for this location yet.
San Antonio: Storm surge model is not available for this location yet.
Wildfire
Lewisville: 49/100 · San Antonio: 60/100
San Antonio is 11 points higher.
Lewisville: Wildfire exposure derived from ingested fire potential tiles.
San Antonio: Wildfire exposure derived from ingested fire potential tiles.
Current air quality
Lewisville: 28/100 · San Antonio: 28/100
No gap.
Lewisville: Air quality signal derived from the latest EPA AirNow combined AQI grid.
San Antonio: Air quality signal derived from the latest EPA AirNow combined AQI grid.